Maple-sugar evaporator.



Patented Sept. 29, 1914,

4 SEEETB-SEBET 1.

R. H. & H. K. BER.

MAPLE SUGAR EvAPoRAToR.

APPLICATION FILED JUNE 2B, 1912. 1,1 1 2,380.

m HU E @mmm w s .A

LlLlLlL-ILII-Illl-ll-JL-ll-l FTW R. H. & H. K. BER.

MAPLE SUGAR EVAPORATOR.

APPLICATION FILED JUNE 2B, 1912.

Patented Sept. 29, 1914.

4 sums-sanm- 2.

TO-LITHO.. WASHINGTUN. D4 C, n

R. H. L H. K. OBBR.

MAPLE SUGAR EVAPORATOR.

APPLICATION FILED JUNE 28,1912.

Patented Sept 29, 1914 4 SHEETS-#SHEET 3. E

%14000 www rre' rloRRIs PErERS C0 PHOTO-I ITHO.. WASHINGTON, A) C.

R. H. & H. K. OBER.

MAPLE SUGAR EVAPORATOR.

AP1 L0ATIOR FILED JUNE 28, 1912.

Patented Sept. 29, 1914.

4 SHEETS-SHEET 4.

W//ess P5 l 1% WW UNITED STATES PATENT (mincir.

RILEY H. OSBER AND HOWARD K. OBER, OF FORT JACKSON, `NEW YORK.

MAPLE-SUGAR EVAZPORATOR.

Specicaton of Letters Patent.

Application mea :rune 2s, i912. serial Nt. 706,464.

and HOWARD K. OBER, citizens of the States, residing `at lFort Jackson, 1n the county of St. Lawrence, State of New York, have invented certain new `and useful Improvements in Maple-Sugar Evaporators; and we do hereby declare the following to be a full, clear, and exact description of themvention, such as will enlalolegothers skilled in the art to which it appertains make and `use the same. 1 i

This invention relates to improvements inv evaporators, .and particularly to maple suy l the pan is a partition 27, havingzan' opening gar ev'apoiators.

One object of minimum expenditure of fuel.

Another object is to provide a" `device of this character wherein the syrup will be ex-l posedto the heated surface 1in a thinlayer,

so lthat the same 'will boil faster,and. conse-y quently reach the`sugaring point inr-lessv time than heretofore. t

Another object is to provide a" quickly reversed to flow through the pan from either side.

Other objects and advantages will bev apparent from the following description` and with particular reference to the accompanyf` ing drawings.

In the drawings z, Figure 1 is a top plan view of the device, Fig. 2 is a sideelevation, Fig. 3 is a vertical transversesectional view` of Fig. 1, Fig. 9 is' `a perspective view of the heat del-lector, Fig. 10 is adetail sectional View: of one of the regulator chainbeis. i

Referring particularly `to the drawings, 10 represents thel brickfwork of a furnace structure, in one end ofwhich are arranged the grate bars 11, and at the same end `the smoke stack 12. Disposed on the furnacethe invention is to provide a device of this character which will produce the maximum amount of Sugar with the device this character wherein the syrup may be structure is the evaporatingpan 13, the pan ,I `Patented Sept. 29, `19111.

being divided' longitudinally by means of i the partitionlt` in the-bottom of which, at

one end, isk an opening 15. "On eithersidejv of the partition 14,' are th'esimilar :partitions 16 and 17 ,which areprovidedwith` theopen-` ings 19, one endf and the openings 21 at the opposite end, the latter lbeing controlled by the sliding gates22 `and 23.- Extending transverselyiof `the pian between the parti- ,tion 16 `and the Vadjacent,sidewall of the pan is a partition 24 having the opening 25,

controlled bythe sliding gate 26. A Similarly formed and arranged'on'the other side of 25 similar to thefopening 25 and a gate 29.

In the end wall 30of the paniv are vformed the openings 31 and 32 having the sliding gates H33 and 34.- respectively. `longitudinal and `transverse partitions, the pan is` divided into the longitudinal com- 'peartments a, 5,10 and d and the smaller vcompartments e and f` `respectively at` one By means of these end of eachof the compartments a and d. In each of the compartments ZJ" and c are ,formed the "longitudinally extending fines 135, one end of each of which dischargesinto thestack 12 while the otherend is in `comlnunicationwith Vthe furnace/to receive the heat and products of combustion to permit them` to passtherethrough. In the lower end` of the stack and below "the endsof the fiues 35 is a damper plate, whichwhen open permits `a direct draft up the stack and when closedforces vthe heat to` travel to the other `end of the furnace `and through the lues 35 to thejvstack. From one end of `the grate barsto a point adjacent the lopposite end of the bri-ck structure extends an inclined deflector 36 to direct the heat into the adjacent eiids "of the flues.- Arranged at one end of thepan, `and disposed over the end of the furnace oppositeto,v the grate is a pan 37, which isiformed witlia r(series of longiltudinally arranged corrugations 38, cominunication between this pan andthe pan 13 being established by means of the openingsv Disposed` above the flues and ai"` and 32; connecting with the pan; 37 is a U-shaped `syrup conducting pipe"39,`one end of each of its branchesextending into one `of the openings `31 and 32 in the end wall 30 so as to `discharge the syrup into the 'pan 37.

Formed in the lbranches of the` pipe 39` `ad` jacent the wall 30,1are the funliels 10 and 110 vrire l leading1 -draw oft' `opening 5 3', y vided tobe .placed in one or the other of the .funnelS 4.@ and 41. In veach ofthe four cor- Aof Which the 41. yThis pipe39 serves as a preheater for the syrup so that cold syrup will not be discharged into the pan 37.

Disposed in the compartment c, is a regulating device which comprises a tank 43, open at the bottom as indicated at 44 and having the supporting legs` 45, to hold the to. vtlaf-zfvalve.` In the ,drawings the spout v isdisposed in thelfunnel In one side Wall of thepan 13, Within the compartment. a, iS anqiitlet 52, from Which the syrup of the ycoinpartm'ent b may be drawn off.. Formed similarly inthe opposite `vvall ,of the-pan, in the, compartment l is a A stopper 54 is proners of the pan 13y is a handle 54 by means pan mayv be readily lifted from ,the furnace,

In theJ operation Of the device, assuming 4that the syrup is to be drawn Off through .the opening 5 3,y the regulatorI 42 Will be i .placed in the compartment. e so that the `valve spout isdisposed in the funnel 40.

vn, stopper 5 4 is: placed in the pipe 39 adjacent the funnel 4 0so that the syrup which passes into. the. pipe 39 Will be forced togo clear aroundzthrough, the pipe and enterthe pan 37 from-the end of the other branch through, the opening 32.. The, gate 22, and the openil .52011 oneside and 29 on the other side are c losed the gate 23 being partially openedto permit some of the syrup to pass into the' compartment f to prevent the same from becoming dry. The stopper l 54 is placed in, the funnel 41. IIhe syrup 'which passes from the pipe39through the heating pan. 37 will flow over the corrugations, `and in tothe compartment e by means of the openingl, from Which it passes by means of the opening 2 5 into the compartment a. The syrup travels to the opposite end ofthe compartment l1-,f enters the com? partment through the opening 19 ofthe ypartitionluivhere it flows over the fines 35,

entering the compartment c through the :opening 15- in theopposite end ofthe middle Walll 14, thence along the compartment c through the opening-.19 of thel Wall r1'?, into the compartment Zand to thevother end of they compartment, Where it is*l dravvn` off Ithrough the opening53. By means of the float 46, the valve 49 Will be opened or Aclosed to regulate the amount of syrup pass.

the

be heated clear through before the boiling couldtakc place, and as the additional cooler syrup flowed thereinto, the boiling process would be greatly retarded. Furthermore,

lthis would require a greater amount of fuel and as. a result greatly kincrease the cost of manufacture kof maple sugar and maple syrup. When the syrup becomes too. deep in the'pan 13-the ioat will be lifted by the syrup and close the valve` 49 until enough syrupv has passed from the outlet 53 to permitl the Heat to fall. Thus the syrup is mailitained at a constant depth, to permit a more perfect and rapid boiling thereof..

To keep the compartments e and f, comparativelyV cool, we placeV under the inner end of the pan 37'. a supporting member 55, having ,therconfthe curved delector plates 56 which direct the heat from they furnace into the; ilues y35, no; heat passing directly into contact with any part of either of the compartments. e or f.. By this construction, the regulator may be quickly and easily moved into. the opposite compartment when it is desired to reverse the flow of syrup from the pan and draw the same ol from the opposite side.

What is claimed is 1.. In a. device for evaporating maple syrup,l a pan havingv longitudinal and parallel compartments, heat conducting liues extending longitudinally through the middle compartments, smaller compartments at one end of each of the side compartments, a regulating device disposed in. one of the smaller compartments, a syrup conducting pipe disposed over the middle compartment and connectedl to the regulator, a heating pan at; one end` of thev Iirst-named pan and communicating therewith, the said compartments ofthe first-named pan communicating withk each other, and gates iny said communications for regulating the flow of the syrupiback and forth longitudinally of the pan.y through the compartments and out of the opposite side of the pan.

2.x In a, device for evaporating maple sugar, a syrup pan, a heater pan connected therewith, a plurality of longitudinal parallel compartments ini the first-named pan, outer compartments communicating with the intermediatecompartments at one end, the said. intermediate compartments communicating with each otherat the opposite end, means for re lating the ow of syrup, longitudinal heating flues in the said intermediate compartments, means for conducting syrup to the heater pan, a valve in the syrup conveying means, a iioat for operating the valve when the syrup has reached a predetermined depth.

8. The combination with an evaporating pan having a U-shaped syrup conducting pipe mounted thereon and provided with a funnel, of a regulator comprising an openended vertical tank, a syru supply pipe leading to and mounted on tlie tank, a discharge nozzle in the second-named pi e, detachably connected to the funnel, a oat in the tank, a valve in the nozzle, and adjustable connections between the float `and valve for regulating the How of syrup tothe firstnamed pipe.

In testimony whereof, we aiix our signatures, in presence of two witnesses.

RILEY H. OBER. HOWARD K. OBER.

Witnesses CRAIG DAVIDSON, GERALD AUSTIN.

Copies of this patent may be obtained for nve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

1' Ail 

